Genetic Variability and selection Response for Yield and its Component Traits in Linseed (Linum usitatissimum L.)

Abstract

In the present investigation number of capsules per plant and seed yield per plant showed high PCV and GCV values in BC₂F₂ and BC₁F₃generations and also they exhibited high heritability coupled with high genetic advance as per cent of mean which showed the additive nature of gene effect and thus direct selection may be effective for these characters. At 20% selection intensity all the characters exhibited positive selection differential except days to 50% flowering while response to selection was found positive for all the characters. The predicted heritability in narrow sense in BC₁F₂ generation was found high (more than 60 %) for all the characters except number of seeds per capsule which showed moderate heritability in narrow sense.

Keywords- Selection response, Standardized selection, differential and realized heritability